Hoisting apparatus.



No. 661,592.y Patented Nov. la, |900.

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{Application led Apr. 13, 1900.!

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(No Model.)

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No. 665592 f Patented Nov. ls, |900.

- D. SVENSN.

HOISTING APPARATUS.

(Applition ledAApr. 13, 1900.) (No Model.) A 2 Sheets-Sheet 2.

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l UNITED STATES PATENT OFFICE.

DANIEL SVENSON, OF TWIN VALLEY, MINNESOTA.

HOISTING APPARATUS.

SPEQIFIGATION forming part of Letters Patent No. 661,592, dated November13, 1900.

Application liled April 13, 1900. Serial No. 12.679. (No model.)

To all whom, t may concern:

Be itknown ihatI, DANIEL SVENSON, a citi' Zen of the United States,residing at Twin Valley, i'n the county of Norman and State ofMinnesota, have invented certain new and useful Improvements in HoistingApparatus; and I do hereby declare the following to bea full, clear, andexact description of the in vention, such as will enable others skilledin the art to which it appertains to make and use the same.

My present invention has for its object to provide an improved oist-ingdevice especially adapted for use stringing up the carcasses of animals.

To this end the invention consists ofthe novel devices and combinationsof devices hereinafter described and defined in the claim.

The invention is illustrated in the accompanying drawings, wherein likecharacters indicate like part-s throughout the several views.

Figure 1 shows a complete hoisting device in side elevation. Fig. 2 is aView in front elevation showing the upper portion of the hoistingdevice, the lower portion thereof being broken away; and Fig. 3 is avertical section approximately on the line 003003 of Fig. 2.

The framework is in the form of a tripod formed by legs 1, the sectionsof which are united by keeper-bracket 2 and the upper ends of which fitin sockets 3 of a crown or cap 4. These legs are adapted to be ref movedfrom the crown 4 and the sections thereof to be pulled apart so that thedevice may be packed in small compass.

A windlass the drum of which is in the form of a shaft 5 is employed tohoist the animal by means of a rope or connection and a suitablegambrel. As shown, this windlass drum or shaft 5 is mounted in suitablebea-1'- ings 6, that are suspended byastrong bracket 7, the upperend ofwhich is secured by a shoe 8 to the crown or cap 4. Each bracket 6 alsohas a leg 9, which is detachably secured, as shown at 10 in Fig. 3, tothe adjacent keeper 2 of the supporting-legs 1. A rope or eXibleconnection 11, secured at one end to the windlass shaft or drum 5, runsover a guidesheave 12, suitably mounted within the crown or cap 4. Atits lower end the rope connection 1l is provided with a gambrel made upof a head 13 and a pair of hooked arms 14. The rope 11 is directlysecured to the head 13, and the arms 14 are provided at their inner endswith several perfor-ations 15, through which and the head 13 shortnutted bolt 1G is passed to adjustably secure the said arms to the saidhead. The downward movements of the arms 14 are limited by stops 17 onthe head 13.

At one end the windlass shaft ordruin 5 is provided with a largeratchet-wheel 18 and with a hand-crank lil, by the latter of which thewindlass may be turned when the load is not very heavy. A retaining-pawl20, pivoted on one of the bearings 6, cooperates with the ratchet-wheel18 to prevent unwinding Ymovement of the windlass.

1n order that very heavy loads, such as large animals, may be lifted, Iprovide alifting-lever of novel construction. This lifting-,lever isindicated by the numeral 21, and at its lower end it is provided with ametal head or extension 22, which is pivoted to a portion 23`of one ofthe bearings 6 at a point indicated by the short nutted bolt 24.Preferably the lever extension 22 is provided with several perforations25, with any one of which the bolt 24 may be engaged to vary theleverage of the lever. The lever 21 is also provided with a pawl 26,pivoted to the eX- tension 22 by short nutted bolt 27 and subject to aspring 28, which normally holds the free end of the pawl in engagementwith the teeth of the ratchet-wheel 18. The pawl 26 is also preferablyprovided with several perforations 29, with which the bolt 27 may beengaged to adjustably secu re said pawl to its operatinglever.

It will be noted that the pivot-bolt 24 is located considerably outwardfrom the center of the windlass-shaft 5. This gives the 1ever 21increased leverage, and, as already indicated, this leverage may bevaried in vieT of the perforations 25 in the lever extension 22.Attention is also here called to the fact that when the pawl 26 israised until the end 30 of the spring 28 is passed outward of a straightline drawn from the other end 31 of the spring 28 and the pivot-bolt 27the said spring 28 will hold the said pawl in an inoperative position,as would be desired when the windlass is to be operated by the crank 19.

IOO

It will of course be understood that the hooked ends of the gambrel-armsl4'will be hooked into the hocks of the animal which is -to be strungup. This device has been used in practice and is found to be convenientand efficient for Stringing up heavy cattle, as Well as for stx-ingingup lighter animals, such as hogs and sheep. The device is, however,adapted for general hoisting purposes.

What I claim, and desire to secure bv Letters Patent of the UnitedStates, is as follows: The combination with the crown 4 having thesockets 3, of the legs l fitting said sockets 3, the brackets 7suspended from said crown 4, the bearings 6, connected to said bracketDANIEL svENsoN.

Witnesses:

E. H.v GUNDERSON, J. L. WoLD.

